Please check the size and number of the corresponding rounded beads for the purchase.
The Pearce 4mm...8 mm is the best choice.
Pierce 6mm...10 is the best choice for 10 mm.
Kowa Crystal #5818 One-Hole Holes, Fatty Pearl Hole, Cottonpearl Hole, Shayne Pearl Katale, Kyoto Opearu-Marutama Katale, Bronze Tama One Hole, Awamizu Pearl-Marutama Katale